Today we're launching Peptide Lab — a new module inside SciRouter that lets you browse 30 popular peptides, edit their sequences with a color-coded tile editor, explore seven interactive molecular visualizations, predict 3D structures with ESMFold, and design novel variants. Everything runs in your browser. No installation. No PyMOL.
It's available now at scirouter.ai/peptide-lab and the dashboard workspace at scirouter.ai/dashboard/peptide-lab.
What's in the library
We seeded Peptide Lab with 30 peptides across six categories:
- Tissue repair & recovery — BPC-157, TB-500, Thymosin β4, GHK-Cu, KPV, AOD-9604
- Immune & antimicrobial — LL-37, Thymosin α1, Defensin HNP-1, Lactoferricin B
- Neuroprotective & nootropic — Semax, Selank, Dihexa, DSIP, Humanin, MOTS-c
- Longevity — Epitalon, FOXO4-DRI, SS-31, GHK
- Metabolic & hormonal — CJC-1295, Ipamorelin, Tesamorelin, PT-141, Semaglutide, Tirzepatide
- Skin & cosmetic — Melanotan II, GHK-Cu (cosmetic), Matrixyl, Argireline
Why build a playground, not a clinical tool?
Peptide therapeutics have quietly become one of the most active areas of drug development. Thirteen peptides have been FDA-approved since 2020, including semaglutide (Wegovy/Ozempic) and tirzepatide (Mounjaro). At the same time, a massive grey-market community has grown around peptides like BPC-157, GHK-Cu, and Melanotan II, with very little authoritative information available.
We built Peptide Lab because we wanted a single place where you could see a peptide — not just read about it. You can rotate its backbone ribbon, watch its helical wheel spin as you swap residues, see charges redistribute in real time, and run a free ESMFold prediction to get an actual 3D structure.
The seven visualizations
Every peptide comes with seven SVG visualizations that re-render instantly as you edit the sequence:
- Backbone Ribbon — A smooth wave showing residues in order, colored by amino acid type
- Helical Wheel — The Schiffer-Edmundson projection, revealing amphipathic faces
- Surface Model — Residues sized by hydrophobicity, giving a sense of the molecular exterior
- Hydrophobicity Profile — Kyte-Doolittle plot with a 3-residue sliding window
- Charge Distribution — Per-residue charge at pH 7, with net totals
- Category Map — A simple strip showing amino acid categories (nonpolar, polar, charged, aromatic)
- Property Radar — A 5-axis pentagon comparing solubility, stability, permeability, hemolysis, and structural confidence
Everything is pure SVG — no Three.js, no WebGL, no 500 MB of bundled dependencies. The entire lab loads in under 2 seconds.
ESMFold in one click
For actual 3D structures, we hook into Meta's ESMFold model through SciRouter's existing protein folding endpoint. Click “Predict 3D” on any peptide, and within a few seconds you get a full atomic-resolution prediction rendered in 3Dmol.js with pLDDT confidence coloring. Every prediction is cached in your browser's localStorage, so repeat visits are instant.
Design your own variants
Every peptide workspace has an editable sequence editor and a mutation suggester. Pick a target — solubility, stability, or permeability — and Peptide Lab will rank single-point substitutions by predicted improvement. Click “Apply” and the new sequence cascades through every visualization in real time. Save the variant as a named design, then use the compare view to see exactly what changed and how it affects the predicted properties.
What's next
This is just the MVP. Coming soon:
- Literature panels connected to SciRouter's paper search
- More peptides — we'd love suggestions for what to add
- Batch variant generation with ProtGPT2
- Shareable peptide cards for Twitter/X and LinkedIn